fei1 faat3 hang4 wai4非法行為非法行为
Jyutpingfei1 faat3 hang4 wai4
Yalefēi faat hàhng wàih
Definition
An illegal act; unlawful behavior.
neutralother
How it's used
Formal in tone, this term is primarily used in legal, journalistic, or official contexts rather than casual conversation. When speaking informally, locals are much more likely to use phrases like 做壞事 or 犯法 to describe illicit activities. It functions as a noun phrase and is rarely used to describe minor social transgressions.
Examples
He committed many illegal acts and was eventually arrested.
Do you know that that thing is an illegal act?
Related words
Common phrases
involve in illegal acts
cease illegal acts
Common mistake
Learners often use this term in everyday situations where it sounds overly stiff or dramatic. For common misbehavior, stick to 犯法 or 唔合法.
Grammar color guide
Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector
Grammar guides
- TonesCantonese has six tones, and the tones can change in certain grammatical contexts. Learn the six tones and the rules for tone change.
- Time and datesClock time, days of the week, months, and years. The patterns you need to make plans and talk about when things happen.
- Modal verbsHow to say can, will, may, should, must, and want. The core modal verbs of Cantonese and the differences that trip up beginners.



